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  1. Parts for Sale
    Selling off the last of my parts from my LX. This is a top end from a 2013 Challenger. I think they had around 35-40k miles on it when I bought them. This is for a set of Heads (with valves and springs installed), valve covers, and the full intake manifold. I'm willing to split them up, but...
    $650 USD
  2. Magnum General Discussion (2005 - 2008)
    Hey guys so I bought my mag a few years back as a project car. The engine was blown ( common valve drop issue). I've been working out all of the mechanical issues the car has.( more then I originally thought) It's about to go on the road and I want to upgrade the heads to avoid the valve issues...
  3. The SRT-8 (6.1L and 6.4L V8)
    2017 Challenger 6.4L, Manual. I know the apache heads flow well already, and I know most guys here are more keen to supercharge than throw money at an NA build, but I'm not. I'm doing my build in a few months, it entails the followong: JLT CAI Fastman 87mm TB Ported intake manifold Kooks LT...
  4. Engine / Intake / Exhaust / Performance
    Hi, trying to figure out if anyone has taken heads off, installed some longtubes, and tried it stuff the whole assembly back in the car? Particularly on a charger or Challenger? Not sure if it's possible. Going to have the heads off in a couple months so I figure it's be a good time to do it...
  5. 300C, Magnum RT & Charger RT (5.7L V8)
    I have a 08 pre eagle 5.7 and I've got a set of 6.1 heads I'm going to put on with a comp stage 2 hrt cam and putting the comp beehive springs on the heads and I've ordered the the comp non mds lifters already. I also have a eagle intake already. Just wondering what push rods to get and...
  6. Arrington Performance
    I've had a set of Arrington Phase 4 heads installed in my '06 Charger SRT8 since about 2010. I'd like to refresh the valve springs as I've put on about 100K on the heads. Is a kit available for purchase? I have access to a good wrench who can do the install for me. I might have him pull the...
  7. Magnum General Discussion (2005 - 2008)
    Stock 6.1 2006 srt mag. Had what we all assumed was a bad injector. Car got exhaust, diablo intune and all possible avenues explored on the injector from replacement to checking sensors, etc. Still read 134 misfires in a cycle on cylinder 3. Mechsnic kept it for a week to make sure because he...
  8. 300C, Magnum RT & Charger RT (5.7L V8)
    Removing the heads soon on my (mostly) stock 220k mile RT Magnum to fix my leaky head gasket and exhaust leak, and planning on having the heads cleaned up and decked while they are off. I was planning on having my valve seats replaced, mostly for peace of mind. Question... how difficult are the...
  9. Engine / Intake / Exhaust / Performance
    I've got a 2008 300c and they tell me that I need the 83cc heads. But I haven't gotten a answer about the eagle or 6.1 intake bolting up without the adapters. Does anyone know that answer or have any input on those heads
  10. 300C, Magnum RT & Charger RT (5.7L V8)
    In the interest of saving time on a repair, is there a reputable go to source for rebuilt 5.7 heads. I have a 2005 Magnum RT that is all stock. Not looking for upgrades. I see Jegs has ATK heads in stock. Any feedback is welcome.
  11. Engine / Intake / Exhaust / Performance
    Hi, i'm building a 6.1 based 426 for my dailly 300c k1 4.080 crank k1 rods cp bullet pistons 10.75:1 6.1 ported heads with psi 1511ml springs and psi pushrods 90mm throttle body, intake manifold matched do 90mm stock converter unfortunatly i've lost the heads flow numbers :/ looking for a...
  12. Engine / Intake / Exhaust / Performance
    I am doing a "junk yard" or "sloppy build" on a 5.7 I got for relatively inexpensive. The cam was wiped on several lobs I have everything to put a 6.4 cam into the motor I put the 6.4 spring i had on the shelf in the heads but I am reading conflicting information about whether or not they will...
  13. The SRT-8 (6.1L and 6.4L V8)
    I'm thinking about putting a 6.1 into my 06 Maggie R/T AWD. American racing makes headers for the eagle headed AWD cars. Are the eagle heads the same port dimensions and bolt pattern as the 6.1 heads? If so I was just going to use the AWD headers for the eagle heads from them. Thanks!
  14. Engine / Intake / Exhaust / Performance
    6.4 Heads on 6.1 cammed block, has anyone done this ? how much gains should i expect? :) or maybe loose of power.... :/ i know that the CR will drop a little something around 10.2:1 ? i will use stock 6.4 pushrods and between 040 and 050 gasket thickness for PTV clearance engine has...
  15. Engine / Intake / Exhaust / Performance
    I've been checking rocker arms on ebay and notice there seems to be 3 different styles. I know on my 07 5.7 I have what looks like C clips on one side of the rocker arms, some have nothing and I've seen some with a sleeve in-between the rocker arm and shaft mounting bolt I'm guessing to keep the...
  16. At the Dragstrip
    Its not too late to get us on your schedule!!! We have a class for everyone and the events are designed for you....... $15,000 in cash payout at each event. Modern Street HEMI Shootout | Drag Race Series for Gen3 HEMI Powered Modern Mopars MSHS EVENTS Races | Modern Street HEMI Shootout...
  17. Jeep Grand Cherokee SRT / Track Hawk
    Im looking at buying an 07 Overland 5.7 with high miles so Im pricing parts for a rebuild. Will the 09 heads and exhaust manifolds, mids fit the 07 without issues? 6.1 intake manifold 6.1 fuel rail and injectors 2009 5.7 heads 2009 5.7 exhaust mani and mids Any issues?
  18. Engine / Intake / Exhaust / Performance
    Hi, i've got a good deal on some 6.4 BGE parts (low miles on them) and would like to put this in my 6.1 block (2006 300c srt8) And i need info if anyone has done this before? Do i have to swap pistons + 6.4 rods or just pistons on 6.1 rods? ( is there a difference in rod lenght?)...
  19. 300C, Magnum RT & Charger RT (5.7L V8)
    Recently bought a set of 6.1 heads and am trying to figure out the compression ratio with .51 gasket. I know factory gasket is 11-1, what would .51 put me at, has to be able to run on premium pump gas aiming for 10.5-1.
  20. Engine / Intake / Exhaust / Performance
    Port and polish aside, what is needed besides thicker gaskets and pushrods to mount 6.1 heads on a 5.7 block?
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